Brick re-press.



No. 761,826- PATENTED JUNE '7, 1904. O. L. GERWIG.

BRICK RIB-PRESS.

APPLICATION FILED PEB.10, 1904.

N0 MODEL. w 2SHBBTSSHEET l INVENTOR wn-mzsszs G/wom' PATENTED JUNE 7, 1904.

0. L. GERWIG.

BRICK RE-PRESS.

APPLICATION FILED FEB. 10, 1904.

N0 MODEL. 2 SHEETS-SHEBT 2.

, a? i Q a he mvaw-ron WITNESSES GAG/0V1 4 WORNEY Patented June 7, 1904.

PATENT 0 Fries.

OSCAR L. GERTVIG, OF CANTON, OHIO.

BRICK RE-PRESS.

SI EOIFICATION forming part of Letters Patent No. 761,826, dated June '7, 1904.

Application filed February 10, 1904. Serial No. 192,887. (No model.)

T 0 all whom, it nuty concern:

Be it known that I, OSCAR L. Geuwre, a citizen of the United States, residing at Ganton, in the county of Stark and State of Ohio, have invented a new and useful Brick Re- Press, of which the following is aspecification.

The invention relates to a machine for repressing bricks or other articles which have been approximately shaped and partly pressed; .and the object of the improvement is to provide a simpler mechanism than has heretofore been used to effectively perform all the movements and work necessary in such a repress. This object is attained by the construction, mechanism, and arrangement illustrated in the accompanying drawings, in which Figure 1 is a front elevation of the re-press, showing the plungers down; Fig. 2, a side elevation showing the plungers raised; Fig. 3, a vertical section on line 3 3, Fig. 1; Fig. 4:, a similar section, showing the plungers raised; and Fig. 5, a cross-section on line 5 5, Figs. 1 and 3, showing details of the upper cross-head and guide.

Similar numerals refer to similar parts throughout the drawings.

A double machine-that is, one having two dies and two sets of plungersis used to illustrate the invention, and in the frame 1 are provided the cross-girders 2 and 2, on which the double die 3 is mounted, which die is of the usual form, with the matrices 4 comprising through vertical apertures, each having such a cross-section as it is desired to finally form the bricks.

The vertical guides 5 and 6 are provided on the inner sides of the frame-standards, in which guides the slides 7 and 8, respectively, on the ends of the-upper and lower cross-heads 9 and preferably located in the same plane as the lowest position of the pendent shaft, and the free end of the eccentric arm 18 is journaled on the pendent shaft, preferably at the middle thereof, and motion is imparted to the main shaft by the gear 19, the counter-shaft 20, and the pulley 21.

The long connecting-rods 22 are journaled. on the pendent shaft above and to the lower cross-head below and are located to pass freely on each side of the die and the upper plungers, for which purpose the upper plungers are placed on the forward extension 23 on the body of the upper cross-head, and the short and preferably adjustable connecting-rods 24. are journaled on the pendent shaft above and to the forward extensions of the upper cross-head below, by which arrangement the cross-heads and the plungers thereon are adapted to be raised and lowered by the swinging of the pendent shaft to and from its lowest position, and the'difl'erence in the lengths of the connecting-rods results in a corresponding difference in the rate and extent of the vertical movements or strokes of the respective plungers.

The various parts of the mechanism are so located, arranged, and proportioned that when the lower plungers are elevated in the matrices to or near the upper side of the die by a movement of the pendent shaft from its low- .est position,which is the proper place for these plungers for receiving the approximatelythereby re-pressing the bricks, as shown in 9 Figs. 1 and 3, the compression of the bricks being accomplished by the approach of the upper plungers toward the lower ones resulting from the different rates of their depression. The depth of the die is preferably proportioned with reference to the depth of the bricks and the amount of vertical compression to be made in them, so that the work of compression will begin at the same time the upper plungers enter the matrices' It will be noted that the rock-shaft and pendulum-rods are only used for sustaining and raising and lowering the compressing mechanism and that the real work of the re-press is done by bringing the pendent shaft in line with the two plungers, whereby the plungers are forced together, the long connecting-rods being in tension and the short ones in compression. For this reason the particular means illustrated and described for sustaining and laterally moving the pendent shaft are not essential parts of the more particular feature of the invention, which is the method of operating the plungers; but it is preferred to use the rock-shaft support, because the movement given thereby to the pendent shaft is well adapted to raise and lower the compressing mechanism at the proper time with reference to the coming together of the plungers.

What I claim as my invention, and desire to secure by Letters Patent, is

1. A re-press comprising a frame having vertical guides and a die havingavertical matrix, cross-heads above and below the die having slides adapted to operate in the guides and plungers adapted to operate in the matrix, a rock-shaft above the die having a shaft depending therefrom, connecting-rods of different lengths journaled on the pendent shaft and to the respective cross-heads, and means for swinging the pendent shaft.

2. A die having a vertical matrix,vertically movable plungers one above the other adapted to operate in the matrix, a pendulous shaft above the die, and connecting-rods of difierent lengths journaled on the shaft and to the respective plungers.

3. A pair of vertically-movable plungers one above the other, a pendulous shaft above the plungers, and connecting-rods of different lengths journaled on the shaft and to the respective plungers.

4. Apair ofvertically-movable plungers one above the other, a laterally-movable shaft above the plungers, and connecting-rods of difierent lengths journaled on the shaft and to the respective plungers.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

OSCAR L. GERXVIG.

Witnesses:

JOHN J. SMITH, HARRY FREASE. 

